Chevrolet 2015 Captiva Owner's Manual page 253

Pressing the button again
deactivates the system and the
indicator light turns off.
Rear parking assists system
The parking assistance system
assists the driver during backward
movement of the vehicle by
alarming if any object is sensed
behind the vehicle.
This system can automatically be
turned on whenever the ignition
switch is ON and the automatic
transaxle's gear lever is in "R".
This system is deactivated when the
vehicle's speed is greater than
approximately 25 km/h (15 mph).
If the alarm sound happens when
shifting the gear to "R" position, this
indicates normal condition.
Warning sound
You can figure out the distance
between your vehicle and obstacles
with the warning sound.
Driving and Operating 9-27